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build, hack, tweak, share, discover,^ 


Written By: Katelyn 


Soldering iron (1) 


Arduino Uno (1) 

ProtoShield (1) 

9V battery (1) 

100 ohm 1/4 W resistor (1) 

8 Ohm mini speaker (1) 

Three-axis Accelerometer (1) 

200 ft of 22 gauge wired) 

Colored electrical tape (1) 

Bubble wrap 3"x2" (for protection in the 
event of a not-so-smooth landing) (1) 

Wire stripper/crimper (1) 

Female connector header (2) 


Prototyping PC board (1) 


Nature has a way of speaking to us in a way that soothes and revitalizes. Sounds of the 
wind in various places create low volume tones that we barely hear. They have a certain 
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beauty and randomness to them that are unique to nature. We've all heard the wind rustling 
the leaves, hitting our cars, and, even in its most raw form, moving up against our ears on 
the beach and in open fields, but have we ever really gotten a chance to hear what the wind 
would sound like if we analyzed it electronically? 

The Powerhouse Pirates have done just that. We modified a simple kite to hold an 
accelerometer and programmed an Arduino to play tones based on the accelerometer's 
input. The result is the SPEAKR! (Singing Portable Electronic Arduino Kite - Remix!). If the 
virtual world had wind, this is what it would sound like. And the best part is that it's cheap to 
build and easy to adapt! We're going to show you how. 

Special Thanks to: 

Marcela Zablah 

Matt Fuchs 

Marc de Vinck 

TE Class of '13 

Step 1 — SPEAKR! 

• Build your Arduino Uno, if you did not purchase it pre-built. 

• Solder the Protoshield together. 

• Properly attach the Protoshield to the Arduino Uno. 

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Step 2 

• Cut the 200 feet of wire into eight 
25ft lines of wire. Our lines were 
20ft each. 

• Strip the ends of the wire with a 
wire stripper. 

• Label the ends with tape. We found 
that colored electrical tape worked 

• Twist the wires together to get a 
rope-like structure. 

Step 3 

• Solder female headers to PC board. 

• Solder wires to the PC board. 

• Solder the wires to the headers. 

• Cut the PC board (it's pretty big otherwise). 

• Snap in the accelerometer. Be sure to write down which wires are going to which ports! 

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Step 4 

• Assemble your kite. 

• Poke a hole near the cross of the 
kite with scissors. 

• Feed your rope of wires through the 

• Secure the PC board with 
accelerometer to the kite. We 
secured it to the long vertical 
piece, right below the cross. 

Step 5 

• Here is how we secured the accelerometer: 

• Electrical tape to secure the accelerometer to the PC board. 

• Wrapped bubble wrap around the accelerometer and PC board. 

• Taped the whole thing down with duct tape. 

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Step 6 

• See the wire schematic in the next step for additional assistance. This directly 
corresponds to the protoshield header pins. 

Step 7 

• Though you don't need a computer 
to run the project itself, 
programming the Arduino requires 
some software on a computer. 
Don't worry, it's all cross-platform 
and easy to use. 

• Install Arduino software. 

• Add Arduino MMA7361 library, 
or other if you have a different 

• Upload the attached code to the 
Arduino board. 

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Step 8 

• Plug in the battery pack. Test and 

• More content regarding the 
Powerhouse Pirates and SPEAKR! 
can be found on our website. 

This document was last generated on 2012-11-03 03:24:47 AM. 

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